PT Ispat Indo steel plant — Indonesia

PT Ispat Indo steel plant is a steel plant in Indonesia. Its listed capacity is 650,000 t of steel. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels. By capacity it ranks #5 among 5 steel plants in Indonesia. It emits about 175,441 t CO₂e a year from Climate TRACE. That is 0.24% of the CO₂e from the 53 facilities in Indonesia that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 71% below the national median for this sector.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-49536210.

In context: how this facility compares

At 650,000 t of steel, PT Ispat Indo steel plant is below the median steel plant in Indonesia (2,800,000 t of steel). Subsector: iron-and-steel. As steel plant, it requires high process heat (typically 800–1500°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels.

Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.

What 175,441 t CO₂e a year looks like

This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Capacity vs largest steel plants in Indonesia

Listed capacity (t of steel), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Local climate

PT Ispat Indo steel plant sits in a tropical savanna climate zone (Köppen Aw), at 7.4°S in the southern hemisphere.

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

In this site’s local climate, a bare 150 °C surface sheds about 1220 W/m² to ambient — roughly 0.94× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby sites

The #5 largest of 5 steel plants in Indonesia by listed capacity (Climate TRACE).

Nearby industrial sites

• P.T. Pakerin · Pulp & Paper Mill
• Semen Gresik Tuban Cement Plant · Cement Plant · 5,147,322 t CO₂
• Pertamina Trans-Pacific Petrochemical Indotama Refinery · Refinery · 384,427 t CO₂
• Solusi Bangun Indonesia Tuban Cement Plant · Cement Plant · 1,508,913 t CO₂
• Indonesia Renma Red Lion Jember Cement Plant · Cement Plant · 1,203,982 t CO₂
• Semen Imasco Asiatic Jember Cement Plant · Cement Plant · 1,196,618 t CO₂

Location

Coordinates -7.35471, 112.70375. View on OpenStreetMap.

Frequently asked questions